/*
 * YajHFC - Yet another Java Hylafax client
 * Copyright (C) 2009 Jonas Wolz
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *  
 *  Linking YajHFC statically or dynamically with other modules is making 
 *  a combined work based on YajHFC. Thus, the terms and conditions of 
 *  the GNU General Public License cover the whole combination.
 *  In addition, as a special exception, the copyright holders of YajHFC 
 *  give you permission to combine YajHFC with modules that are loaded using
 *  the YajHFC plugin interface as long as such plugins do not attempt to
 *  change the application's name (for example they may not change the main window title bar 
 *  and may not replace or change the About dialog).
 *  You may copy and distribute such a system following the terms of the
 *  GNU GPL for YajHFC and the licenses of the other code concerned,
 *  provided that you include the source code of that other code when 
 *  and as the GNU GPL requires distribution of source code.
 *  
 *  Note that people who make modified versions of YajHFC are not obligated to grant 
 *  this special exception for their modified versions; it is their choice whether to do so.
 *  The GNU General Public License gives permission to release a modified 
 *  version without this exception; this exception also makes it possible 
 *  to release a modified version which carries forward this exception.
 */
package yajhfc.printerport;

import java.io.IOException;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.logging.Level;
import java.util.logging.Logger;

import yajhfc.launch.SendWinSubmitProtocol;
import yajhfc.launch.SubmitProtocol;

public class ListenThread extends Thread {
    private static final Logger log = Logger.getLogger(ListenThread.class.getName());
    protected final ServerSocket printerSock;

    public ListenThread(String listenAddress, int listenPort) throws UnknownHostException, IOException {
        super("PrinterPort-" + listenAddress);
        this.printerSock = new ServerSocket(listenPort, 0,
                (listenAddress == null || listenAddress.length() == 0) ? null : InetAddress.getByName(listenAddress));
        this.setDaemon(true);
    }

    public void close() {
        try {
            printerSock.close();
        } catch (IOException e) {
            log.log(Level.WARNING, "Error closing socket:", e);
        }
    }
    
    @Override
    public void run() {
        try {
            while (!isInterrupted()) {
                Socket sock = printerSock.accept();
                try {
                    submitFax(sock);
                    sock.close();
                } catch (Exception e) {
                    log.log(Level.WARNING, "Error accepting a connection:", e);
                }
            }
        } catch (IOException e) {
            log.log(Level.WARNING, "Error accepting a connection:", e);
        } finally {
            close();
        }
    }

    protected void submitFax(Socket sock) throws IOException {
        SubmitProtocol sp = new SendWinSubmitProtocol();
        sp.setInputStream(sock.getInputStream(), getPrinterSockText());
        sp.submit(true);
    }

    protected String getPrinterSockText() {
        return "[" + printerSock.getInetAddress().toString() + ':' + printerSock.getLocalPort() + ']';
    }
}